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21.	Where is Lake superior, the largest fresh water in the world, located?
	A.  Russia
	B.  Brazil
	C.  Canada
	D.  U.S.A.

Answer

Ans: D U.S.A.

22.	Common salt is obtained from sea water by the process of
	A.  Sublimation
	B.  Evaporation
	C.  Filtration
	D.  Crystallisation

Answer

Ans: B Evaporation

23.	Seasonal Variation is the least
	A.  At 45°N latitude
	B.  At the Equator
	C.  At the Arctic circle
	D.  At the Tropic of Cancer

Answer

Ans: B At the Equator

24.	What is meant by the term Midnight Sun?
	A.  Sun shining in the polar circle for long time
	B.  Twilight
	C.  Rising sun
	D.  Very bright moon

Answer

Ans: A Sun shining in the polar circle for long time

25.	In which sea the river 'Don' flows in?
	A.  Caspian sea
	B.  Baltic sea
	C.  Sea of Azov
	D.  Black sea

Answer

Ans: C Sea of Azov